/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-examples/standard_vararg_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:21:08,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:21:08,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:21:08,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:21:08,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:21:08,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:21:08,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:21:08,193 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:21:08,251 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:21:08,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:21:08,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:21:08,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:21:08,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:21:08,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:21:08,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:21:08,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:21:08,257 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:21:08,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:21:08,258 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:21:08,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:21:08,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:21:08,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:21:08,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:21:08,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:21:08,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:21:08,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:21:08,260 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:21:08,260 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:21:08,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:21:08,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:21:08,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:21:08,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:21:08,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:21:08,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:21:08,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:21:08,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:21:08,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:21:08,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:21:08,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:21:08,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:21:08,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:21:08,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:21:08,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:21:08,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:21:08,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:21:08,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:21:08,706 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:21:08,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_vararg_ground.i [2022-10-16 10:21:08,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec6cecd5/6ab15152c8464d02919d63117a1e88ed/FLAGa3febd1fa [2022-10-16 10:21:09,418 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:21:09,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_vararg_ground.i [2022-10-16 10:21:09,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec6cecd5/6ab15152c8464d02919d63117a1e88ed/FLAGa3febd1fa [2022-10-16 10:21:09,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec6cecd5/6ab15152c8464d02919d63117a1e88ed [2022-10-16 10:21:09,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:21:09,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:21:09,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:21:09,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:21:09,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:21:09,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:21:09" (1/1) ... [2022-10-16 10:21:09,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16904183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:09, skipping insertion in model container [2022-10-16 10:21:09,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:21:09" (1/1) ... [2022-10-16 10:21:09,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:21:09,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:21:10,013 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_vararg_ground.i[815,828] [2022-10-16 10:21:10,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:21:10,042 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:21:10,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_vararg_ground.i[815,828] [2022-10-16 10:21:10,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:21:10,082 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:21:10,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10 WrapperNode [2022-10-16 10:21:10,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:21:10,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:21:10,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:21:10,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:21:10,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,128 INFO L138 Inliner]: procedures = 16, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2022-10-16 10:21:10,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:21:10,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:21:10,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:21:10,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:21:10,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,156 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:21:10,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:21:10,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:21:10,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:21:10,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (1/1) ... [2022-10-16 10:21:10,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:21:10,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:10,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:21:10,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:21:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:21:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:21:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:21:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:21:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:21:10,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:21:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:21:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:21:10,375 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:21:10,378 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:21:10,630 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:21:10,648 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:21:10,649 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:21:10,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:21:10 BoogieIcfgContainer [2022-10-16 10:21:10,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:21:10,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:21:10,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:21:10,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:21:10,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:21:09" (1/3) ... [2022-10-16 10:21:10,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14299160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:21:10, skipping insertion in model container [2022-10-16 10:21:10,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:21:10" (2/3) ... [2022-10-16 10:21:10,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14299160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:21:10, skipping insertion in model container [2022-10-16 10:21:10,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:21:10" (3/3) ... [2022-10-16 10:21:10,665 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_vararg_ground.i [2022-10-16 10:21:10,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:21:10,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 10:21:10,805 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:21:10,816 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2aa66ab6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:21:10,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 10:21:10,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.619047619047619) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 10:21:10,831 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:10,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 10:21:10,832 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:10,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:10,840 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 10:21:10,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:10,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807359704] [2022-10-16 10:21:10,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:10,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:11,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:21:11,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:11,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807359704] [2022-10-16 10:21:11,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807359704] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:11,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:21:11,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:21:11,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141928951] [2022-10-16 10:21:11,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:11,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:21:11,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:11,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:21:11,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:21:11,375 INFO L87 Difference]: Start difference. First operand has 28 states, 21 states have (on average 1.619047619047619) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:11,469 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2022-10-16 10:21:11,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:21:11,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 10:21:11,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:11,483 INFO L225 Difference]: With dead ends: 54 [2022-10-16 10:21:11,484 INFO L226 Difference]: Without dead ends: 27 [2022-10-16 10:21:11,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:11,496 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:11,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 74 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:21:11,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-16 10:21:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-16 10:21:11,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.380952380952381) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-10-16 10:21:11,552 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 5 [2022-10-16 10:21:11,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:11,553 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-10-16 10:21:11,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,556 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-10-16 10:21:11,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:21:11,556 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:11,557 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:21:11,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:21:11,557 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:11,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:11,560 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 10:21:11,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:11,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112768970] [2022-10-16 10:21:11,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:11,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:11,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:21:11,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:11,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112768970] [2022-10-16 10:21:11,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112768970] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:11,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:21:11,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:21:11,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660439661] [2022-10-16 10:21:11,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:11,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:21:11,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:11,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:21:11,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:21:11,676 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:11,702 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-10-16 10:21:11,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:21:11,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 10:21:11,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:11,704 INFO L225 Difference]: With dead ends: 27 [2022-10-16 10:21:11,704 INFO L226 Difference]: Without dead ends: 26 [2022-10-16 10:21:11,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:11,707 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:11,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 54 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:21:11,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-16 10:21:11,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-10-16 10:21:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-10-16 10:21:11,719 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 9 [2022-10-16 10:21:11,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:11,720 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-10-16 10:21:11,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:11,720 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-10-16 10:21:11,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:21:11,721 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:11,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:11,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:21:11,722 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:11,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:11,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1607296535, now seen corresponding path program 1 times [2022-10-16 10:21:11,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:11,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998701769] [2022-10-16 10:21:11,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:11,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:11,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:21:11,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:11,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998701769] [2022-10-16 10:21:11,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998701769] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:11,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259596225] [2022-10-16 10:21:11,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:11,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:11,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:11,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:11,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:21:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:11,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:21:11,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:21:11,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:21:12,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259596225] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:12,035 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:12,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:21:12,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151054016] [2022-10-16 10:21:12,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:12,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:21:12,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:12,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:21:12,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:21:12,038 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:12,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:12,120 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-10-16 10:21:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 10:21:12,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 10:21:12,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:12,121 INFO L225 Difference]: With dead ends: 47 [2022-10-16 10:21:12,122 INFO L226 Difference]: Without dead ends: 32 [2022-10-16 10:21:12,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:21:12,124 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:12,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 108 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:21:12,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-16 10:21:12,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2022-10-16 10:21:12,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:12,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-10-16 10:21:12,132 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 10 [2022-10-16 10:21:12,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:12,132 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-10-16 10:21:12,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:12,133 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-10-16 10:21:12,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:21:12,133 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:12,133 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:21:12,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 10:21:12,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:12,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:12,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:12,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 10:21:12,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:12,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159270647] [2022-10-16 10:21:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:12,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:12,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:21:12,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:12,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159270647] [2022-10-16 10:21:12,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159270647] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:12,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065949732] [2022-10-16 10:21:12,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:12,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:12,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:12,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:12,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:21:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:12,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:21:12,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:21:12,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:21:12,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065949732] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:12,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:21:12,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:21:12,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485269081] [2022-10-16 10:21:12,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:12,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:21:12,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:12,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:21:12,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:21:12,605 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:12,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:12,641 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-10-16 10:21:12,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:21:12,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 10:21:12,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:12,643 INFO L225 Difference]: With dead ends: 31 [2022-10-16 10:21:12,643 INFO L226 Difference]: Without dead ends: 30 [2022-10-16 10:21:12,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:21:12,645 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 21 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:12,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 37 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:21:12,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-10-16 10:21:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-10-16 10:21:12,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 29 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:12,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-10-16 10:21:12,652 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 10 [2022-10-16 10:21:12,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:12,653 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-10-16 10:21:12,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:12,653 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-10-16 10:21:12,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 10:21:12,654 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:12,654 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:12,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:12,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 10:21:12,869 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:12,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:12,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1100938783, now seen corresponding path program 2 times [2022-10-16 10:21:12,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:12,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214168123] [2022-10-16 10:21:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:12,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:21:13,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:13,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214168123] [2022-10-16 10:21:13,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214168123] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:13,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:21:13,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:21:13,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746772555] [2022-10-16 10:21:13,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:13,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:21:13,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:13,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:21:13,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:21:13,062 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:13,096 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2022-10-16 10:21:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:21:13,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 10:21:13,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:13,098 INFO L225 Difference]: With dead ends: 45 [2022-10-16 10:21:13,098 INFO L226 Difference]: Without dead ends: 43 [2022-10-16 10:21:13,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:13,100 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 13 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:13,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 46 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:21:13,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-10-16 10:21:13,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2022-10-16 10:21:13,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-10-16 10:21:13,108 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2022-10-16 10:21:13,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:13,109 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-10-16 10:21:13,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,109 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-10-16 10:21:13,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:21:13,110 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:13,110 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:13,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 10:21:13,111 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:13,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:13,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1069667288, now seen corresponding path program 1 times [2022-10-16 10:21:13,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:13,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244846003] [2022-10-16 10:21:13,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:13,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:13,280 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:21:13,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:13,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244846003] [2022-10-16 10:21:13,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244846003] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:13,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811480281] [2022-10-16 10:21:13,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:13,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:13,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:13,283 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:13,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:21:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:13,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:21:13,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:13,448 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:21:13,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:13,567 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:21:13,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811480281] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:13,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:13,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 20 [2022-10-16 10:21:13,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525312196] [2022-10-16 10:21:13,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:13,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 10:21:13,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:13,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 10:21:13,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-10-16 10:21:13,571 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:13,850 INFO L93 Difference]: Finished difference Result 92 states and 103 transitions. [2022-10-16 10:21:13,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 10:21:13,851 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 10:21:13,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:13,853 INFO L225 Difference]: With dead ends: 92 [2022-10-16 10:21:13,853 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 10:21:13,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 10:21:13,856 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 83 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:13,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 94 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:21:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 10:21:13,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 53. [2022-10-16 10:21:13,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.163265306122449) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-10-16 10:21:13,866 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 22 [2022-10-16 10:21:13,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:13,866 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-10-16 10:21:13,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:13,867 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-10-16 10:21:13,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 10:21:13,869 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:13,869 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:13,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:14,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:14,084 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:14,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:14,085 INFO L85 PathProgramCache]: Analyzing trace with hash 668888055, now seen corresponding path program 1 times [2022-10-16 10:21:14,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:14,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702506579] [2022-10-16 10:21:14,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:14,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 10:21:14,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:14,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702506579] [2022-10-16 10:21:14,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702506579] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:14,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:21:14,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:21:14,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027867671] [2022-10-16 10:21:14,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:14,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:21:14,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:14,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:21:14,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:21:14,272 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:14,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:14,289 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2022-10-16 10:21:14,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:21:14,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 10:21:14,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:14,291 INFO L225 Difference]: With dead ends: 63 [2022-10-16 10:21:14,291 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 10:21:14,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:21:14,293 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:14,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 41 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:21:14,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 10:21:14,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-10-16 10:21:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 52 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2022-10-16 10:21:14,302 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 39 [2022-10-16 10:21:14,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:14,302 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2022-10-16 10:21:14,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:14,303 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2022-10-16 10:21:14,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 10:21:14,304 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:14,304 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:21:14,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 10:21:14,305 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:14,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:14,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2034788010, now seen corresponding path program 1 times [2022-10-16 10:21:14,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:14,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289449493] [2022-10-16 10:21:14,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:14,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:14,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:14,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289449493] [2022-10-16 10:21:14,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289449493] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:14,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557891530] [2022-10-16 10:21:14,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:14,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:14,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:14,676 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:14,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:21:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:14,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:21:14,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:14,857 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:14,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:15,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557891530] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:15,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:15,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-16 10:21:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152068587] [2022-10-16 10:21:15,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:15,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:21:15,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:15,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:21:15,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:21:15,161 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:15,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:15,481 INFO L93 Difference]: Finished difference Result 107 states and 120 transitions. [2022-10-16 10:21:15,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 10:21:15,482 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 10:21:15,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:15,485 INFO L225 Difference]: With dead ends: 107 [2022-10-16 10:21:15,485 INFO L226 Difference]: Without dead ends: 85 [2022-10-16 10:21:15,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 10:21:15,488 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 111 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:15,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 161 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:21:15,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-16 10:21:15,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-10-16 10:21:15,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 81 states have (on average 1.0864197530864197) internal successors, (88), 84 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:15,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2022-10-16 10:21:15,511 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 39 [2022-10-16 10:21:15,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:15,512 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2022-10-16 10:21:15,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:15,512 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2022-10-16 10:21:15,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 10:21:15,514 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:15,515 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:21:15,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-16 10:21:15,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:15,729 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:15,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:15,730 INFO L85 PathProgramCache]: Analyzing trace with hash 179297590, now seen corresponding path program 2 times [2022-10-16 10:21:15,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:15,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458768778] [2022-10-16 10:21:15,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:15,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:16,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:16,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458768778] [2022-10-16 10:21:16,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458768778] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:16,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380203246] [2022-10-16 10:21:16,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:21:16,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:16,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:16,676 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:16,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:21:16,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:21:16,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:16,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:21:16,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:16,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:17,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380203246] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:17,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:17,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-10-16 10:21:17,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413010738] [2022-10-16 10:21:17,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:17,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-10-16 10:21:17,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:17,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-10-16 10:21:17,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-10-16 10:21:17,957 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:18,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:18,864 INFO L93 Difference]: Finished difference Result 171 states and 192 transitions. [2022-10-16 10:21:18,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-16 10:21:18,867 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-10-16 10:21:18,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:18,868 INFO L225 Difference]: With dead ends: 171 [2022-10-16 10:21:18,868 INFO L226 Difference]: Without dead ends: 149 [2022-10-16 10:21:18,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1991 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2595, Invalid=6525, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 10:21:18,874 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 221 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:18,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 159 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:21:18,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-10-16 10:21:18,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-10-16 10:21:18,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 145 states have (on average 1.0482758620689656) internal successors, (152), 148 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 152 transitions. [2022-10-16 10:21:18,888 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 152 transitions. Word has length 71 [2022-10-16 10:21:18,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:18,889 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 152 transitions. [2022-10-16 10:21:18,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:18,889 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 152 transitions. [2022-10-16 10:21:18,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 10:21:18,891 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:18,891 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:21:18,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:19,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:19,106 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:19,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:19,107 INFO L85 PathProgramCache]: Analyzing trace with hash 696902902, now seen corresponding path program 3 times [2022-10-16 10:21:19,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:19,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298669023] [2022-10-16 10:21:19,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:19,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:22,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:21:22,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:22,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298669023] [2022-10-16 10:21:22,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298669023] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:22,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608569885] [2022-10-16 10:21:22,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:21:22,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:22,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:22,261 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:22,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:21:22,368 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:21:22,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:22,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:21:22,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2022-10-16 10:21:22,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:21:22,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608569885] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:22,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:21:22,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [65] total 67 [2022-10-16 10:21:22,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500837174] [2022-10-16 10:21:22,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:22,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:21:22,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:22,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:21:22,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1092, Invalid=3330, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:21:22,503 INFO L87 Difference]: Start difference. First operand 149 states and 152 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:22,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:22,561 INFO L93 Difference]: Finished difference Result 149 states and 152 transitions. [2022-10-16 10:21:22,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:21:22,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-10-16 10:21:22,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:22,564 INFO L225 Difference]: With dead ends: 149 [2022-10-16 10:21:22,564 INFO L226 Difference]: Without dead ends: 148 [2022-10-16 10:21:22,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1096, Invalid=3460, Unknown=0, NotChecked=0, Total=4556 [2022-10-16 10:21:22,568 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 19 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:22,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 32 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:21:22,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-10-16 10:21:22,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-10-16 10:21:22,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 145 states have (on average 1.0413793103448277) internal successors, (151), 147 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:22,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 151 transitions. [2022-10-16 10:21:22,582 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 151 transitions. Word has length 135 [2022-10-16 10:21:22,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:22,583 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 151 transitions. [2022-10-16 10:21:22,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:22,583 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 151 transitions. [2022-10-16 10:21:22,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 10:21:22,585 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:22,585 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 2, 2, 1, 1, 1, 1] [2022-10-16 10:21:22,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:22,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:22,800 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:22,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:22,801 INFO L85 PathProgramCache]: Analyzing trace with hash -437502591, now seen corresponding path program 2 times [2022-10-16 10:21:22,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:22,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442407368] [2022-10-16 10:21:22,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:22,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:21:25,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:25,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442407368] [2022-10-16 10:21:25,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442407368] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:25,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463458810] [2022-10-16 10:21:25,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:21:25,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:25,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:25,613 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:25,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:21:25,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:21:25,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:25,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 10:21:25,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:21:26,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:29,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:21:29,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463458810] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:29,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:29,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-16 10:21:29,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921495189] [2022-10-16 10:21:29,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:29,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-16 10:21:29,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:29,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-16 10:21:29,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-16 10:21:29,904 INFO L87 Difference]: Start difference. First operand 148 states and 151 transitions. Second operand has 130 states, 130 states have (on average 2.023076923076923) internal successors, (263), 130 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:33,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:33,236 INFO L93 Difference]: Finished difference Result 297 states and 334 transitions. [2022-10-16 10:21:33,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-10-16 10:21:33,236 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.023076923076923) internal successors, (263), 130 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2022-10-16 10:21:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:33,239 INFO L225 Difference]: With dead ends: 297 [2022-10-16 10:21:33,239 INFO L226 Difference]: Without dead ends: 276 [2022-10-16 10:21:33,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-16 10:21:33,247 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 553 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:33,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 150 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:21:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-10-16 10:21:33,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2022-10-16 10:21:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 273 states have (on average 1.021978021978022) internal successors, (279), 275 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:33,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 279 transitions. [2022-10-16 10:21:33,268 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 279 transitions. Word has length 138 [2022-10-16 10:21:33,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:33,268 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 279 transitions. [2022-10-16 10:21:33,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.023076923076923) internal successors, (263), 130 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:33,269 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 279 transitions. [2022-10-16 10:21:33,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-10-16 10:21:33,273 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:33,273 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 3, 3, 2, 2, 1, 1, 1, 1] [2022-10-16 10:21:33,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-16 10:21:33,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:33,488 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:33,489 INFO L85 PathProgramCache]: Analyzing trace with hash -715260415, now seen corresponding path program 3 times [2022-10-16 10:21:33,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:33,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096415181] [2022-10-16 10:21:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:33,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:44,160 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:21:44,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:44,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096415181] [2022-10-16 10:21:44,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096415181] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:44,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234100429] [2022-10-16 10:21:44,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:21:44,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:44,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:44,167 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:44,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:21:44,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:21:44,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:21:44,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 10:21:44,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:21:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2022-10-16 10:21:44,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:21:45,792 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2022-10-16 10:21:45,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234100429] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:21:45,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:21:45,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 7, 7] total 141 [2022-10-16 10:21:45,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968614279] [2022-10-16 10:21:45,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:21:45,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 141 states [2022-10-16 10:21:45,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:45,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2022-10-16 10:21:45,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=15462, Unknown=0, NotChecked=0, Total=19740 [2022-10-16 10:21:45,801 INFO L87 Difference]: Start difference. First operand 276 states and 279 transitions. Second operand has 141 states, 141 states have (on average 2.0851063829787235) internal successors, (294), 141 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:54,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:54,769 INFO L93 Difference]: Finished difference Result 366 states and 380 transitions. [2022-10-16 10:21:54,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-10-16 10:21:54,770 INFO L78 Accepts]: Start accepts. Automaton has has 141 states, 141 states have (on average 2.0851063829787235) internal successors, (294), 141 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2022-10-16 10:21:54,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:54,773 INFO L225 Difference]: With dead ends: 366 [2022-10-16 10:21:54,773 INFO L226 Difference]: Without dead ends: 345 [2022-10-16 10:21:54,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16422 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=17586, Invalid=57216, Unknown=0, NotChecked=0, Total=74802 [2022-10-16 10:21:54,783 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1268 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:54,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1268 Valid, 211 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:21:54,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-10-16 10:21:54,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 296. [2022-10-16 10:21:54,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 293 states have (on average 1.0341296928327646) internal successors, (303), 295 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:54,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 303 transitions. [2022-10-16 10:21:54,805 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 303 transitions. Word has length 266 [2022-10-16 10:21:54,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:54,806 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 303 transitions. [2022-10-16 10:21:54,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 141 states, 141 states have (on average 2.0851063829787235) internal successors, (294), 141 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:54,806 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 303 transitions. [2022-10-16 10:21:54,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-10-16 10:21:54,811 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:54,811 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 64, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:54,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:21:55,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 10:21:55,026 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:55,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:55,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1639241850, now seen corresponding path program 1 times [2022-10-16 10:21:55,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:55,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351032031] [2022-10-16 10:21:55,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:55,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:55,299 INFO L134 CoverageAnalysis]: Checked inductivity of 8130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8130 trivial. 0 not checked. [2022-10-16 10:21:55,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:55,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351032031] [2022-10-16 10:21:55,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351032031] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:21:55,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:21:55,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:21:55,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782345323] [2022-10-16 10:21:55,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:21:55,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:21:55,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:21:55,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:21:55,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:21:55,302 INFO L87 Difference]: Start difference. First operand 296 states and 303 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:55,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:21:55,332 INFO L93 Difference]: Finished difference Result 304 states and 311 transitions. [2022-10-16 10:21:55,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:21:55,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2022-10-16 10:21:55,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:21:55,336 INFO L225 Difference]: With dead ends: 304 [2022-10-16 10:21:55,336 INFO L226 Difference]: Without dead ends: 302 [2022-10-16 10:21:55,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:21:55,337 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:21:55,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 50 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:21:55,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-10-16 10:21:55,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2022-10-16 10:21:55,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 299 states have (on average 1.0334448160535117) internal successors, (309), 301 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:55,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 309 transitions. [2022-10-16 10:21:55,358 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 309 transitions. Word has length 271 [2022-10-16 10:21:55,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:21:55,358 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 309 transitions. [2022-10-16 10:21:55,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:21:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 309 transitions. [2022-10-16 10:21:55,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-10-16 10:21:55,363 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:21:55,364 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 64, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:21:55,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 10:21:55,364 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:21:55,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:21:55,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1585660879, now seen corresponding path program 1 times [2022-10-16 10:21:55,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:21:55,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727369349] [2022-10-16 10:21:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:55,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:21:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8135 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 8128 trivial. 0 not checked. [2022-10-16 10:21:55,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:21:55,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727369349] [2022-10-16 10:21:55,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727369349] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:21:55,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982197637] [2022-10-16 10:21:55,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:21:55,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:21:55,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:21:55,837 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:21:55,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:21:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:21:56,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 130 conjunts are in the unsatisfiable core [2022-10-16 10:21:56,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 8135 backedges. 0 proven. 8128 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:22:02,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 8135 backedges. 0 proven. 8128 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:22:18,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982197637] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:18,677 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:18,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 131, 131] total 266 [2022-10-16 10:22:18,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918385153] [2022-10-16 10:22:18,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:18,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 266 states [2022-10-16 10:22:18,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:18,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 266 interpolants. [2022-10-16 10:22:18,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17045, Invalid=53445, Unknown=0, NotChecked=0, Total=70490 [2022-10-16 10:22:18,691 INFO L87 Difference]: Start difference. First operand 302 states and 309 transitions. Second operand has 266 states, 266 states have (on average 2.0676691729323307) internal successors, (550), 266 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:48,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:48,462 INFO L93 Difference]: Finished difference Result 613 states and 691 transitions. [2022-10-16 10:22:48,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 265 states. [2022-10-16 10:22:48,463 INFO L78 Accepts]: Start accepts. Automaton has has 266 states, 266 states have (on average 2.0676691729323307) internal successors, (550), 266 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 277 [2022-10-16 10:22:48,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:48,466 INFO L225 Difference]: With dead ends: 613 [2022-10-16 10:22:48,466 INFO L226 Difference]: Without dead ends: 562 [2022-10-16 10:22:48,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 524 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77422 ImplicationChecksByTransitivity, 46.9s TimeCoverageRelationStatistics Valid=68010, Invalid=208140, Unknown=0, NotChecked=0, Total=276150 [2022-10-16 10:22:48,484 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1603 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:48,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 203 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 10:22:48,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-10-16 10:22:48,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2022-10-16 10:22:48,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 559 states have (on average 1.0161001788908766) internal successors, (568), 561 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 568 transitions. [2022-10-16 10:22:48,514 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 568 transitions. Word has length 277 [2022-10-16 10:22:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:48,515 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 568 transitions. [2022-10-16 10:22:48,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 266 states, 266 states have (on average 2.0676691729323307) internal successors, (550), 266 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:48,516 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 568 transitions. [2022-10-16 10:22:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-10-16 10:22:48,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:48,528 INFO L195 NwaCegarLoop]: trace histogram [129, 129, 129, 129, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:48,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:22:48,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:22:48,743 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:22:48,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:48,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1139267698, now seen corresponding path program 2 times [2022-10-16 10:22:48,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:48,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426474478] [2022-10-16 10:22:48,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:48,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 33166 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 33161 trivial. 0 not checked. [2022-10-16 10:22:49,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:49,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426474478] [2022-10-16 10:22:49,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426474478] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:49,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116524637] [2022-10-16 10:22:49,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:22:49,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:49,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:49,556 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:49,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:22:49,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:22:49,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:22:49,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 260 conjunts are in the unsatisfiable core [2022-10-16 10:22:49,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:23:14,237 INFO L134 CoverageAnalysis]: Checked inductivity of 33166 backedges. 0 proven. 33153 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 10:23:14,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:24:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 33166 backedges. 0 proven. 33153 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 10:24:18,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116524637] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:24:18,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:24:18,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 261, 261] total 524 [2022-10-16 10:24:18,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329570025] [2022-10-16 10:24:18,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:24:18,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 524 states [2022-10-16 10:24:18,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:24:18,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 524 interpolants. [2022-10-16 10:24:18,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67870, Invalid=206182, Unknown=0, NotChecked=0, Total=274052 [2022-10-16 10:24:18,257 INFO L87 Difference]: Start difference. First operand 562 states and 568 transitions. Second operand has 524 states, 524 states have (on average 2.0477099236641223) internal successors, (1073), 524 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)